find the sum of all number from 50 to 250 which are divisible by 6 also find the 13th term
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which class questions is it first follow me then I will give answer
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Answer:
sum of all no -4950 and 13th term is 126.
Step-by-step explanation:
Ap of the given 50-250 divisible by 6 numbers is
54,60,66.......246.
Here, a=54,d=6 and ln=246{here on is last no}
so using formula, ln=a+(n-1)d
then,
246=54+(n-1)6...........
from here value of n will come.
then, using formula , Sn=n/2(a+l)
then from here sum of ap will come.
then, to find 13th term...?
use formula, a13=a+(n-1)d where a=54,n=13,d=6
so, you will get your answer
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